What it is
grevi is a Rust command-line tool that searches by meaning: it finds the error in a long log, a commit, a command, or the right folder for a file, from a plain-English description.
How it uses Jev
The README does not describe which Jev primitives grevi calls or on what state. It says grevi selects and never generates, every answer is a line of input, a command on PATH, a flag, or a folder, with a model confidence score, and that classifier.dev serves Jev free.
Technique worth stealing
Select, never generate: every answer is an existing line, command, flag or folder, with a confidence score.
Try it
cargo install grevi --locked, then run grevi health or pipe a log into grevi why.
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricyes0.67
- Shows a System One patternno0.09
- Handles uncertaintyno0.04
- Measuredno0.05
- Runnableyes0.97
- Worth recommendingno0.23
- Model replicano0.08
- Problem scopescore on a 0–2 scale1.95
- About Jevyes0.94
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.